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arXiv 0912.0294math-phmath.MP
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具有矩阵值位势的一维随机Schroedinger算子的AC谱

On the AC spectrum of one-dimensional random Schroedinger operators with matrix-valued potentials

Richard Froese, David Hasler, Wolfgang Spitzer

摘要:

我们考虑离散一维随机薛定谔算子与衰减矩阵值,独立的潜力。我们证明了,如果这个势的l^2-范数关于乘积测度有有限的期望值,那么几乎肯定Schroedinger算子有一个纯绝对连续(ac)谱的区间。我们将这一结果应用到带上的薛定谔算子。本文给出了一个新的证明,推广了Delyon,Simon和Souillard的一个结果.

英文摘要:

We consider discrete one-dimensional random Schroedinger operators with decaying matrix-valued, independent potentials. We show that if the l^2-norm of this potential has finite expectation value with respect to the product measure then almost surely the Schroedinger operator has an interval of purely absolutely continuous (ac) spectrum. We apply this result to Schroedinger operators on a strip. This work provides a new proof and generalizes a result obtained by Delyon, Simon, and Souillard.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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